Shuttle-operatiimg



(No Model.)

l E. S. WINGHESTER.

SHUTTLE OPERATING MEGHANISM FOR LOOMS.

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EDVARD STEVENS /'INCHESTER, OF BOSTON, MASSACHUSETTS.

SHUTTLE-OPERATING MECHANISM FOR LOOMS.

iL/EIFIATON forming part of Letters Patent `1\o.310,3l70, dated January20, 1885.

Application tiled September 10, 1833.

To all who/lt t ntf/,y concern:

Be it known that I, EDWARD S. Wineries- TER, ot' Boston, in the countyof Suffolk and State of I'Iassachusetts, have invented certainImprovements in Shuttle-Operating Mechanism i'or Looms, of which thefollowing is a specification.

The object of this invention is to provide a cheap and simple meanswhereby Ythe shuttle of a loom may be driven to and i'ro in a rapidmanner.

To this end it consists,essentially, in a shuttle driver or pickercombined with an electromagnet and armature for imparting motionthereto, and automatic devices for opening and closing an electriccircuit in which the magnet is mounted, whereby the attraction of thearmature by the magnet is caused to actnate the shuttle-driver.

I have represented in the drawings the arrangement which I have found inpractice to be most desirable because ot' its extreme simplicity andreliability.

Referring to the drawings, Figure 1 represents a side elevation of thepicker-st. tf and head and the magnetic attachment for imparting motionthereto. Fig. 2 is a diagram illustrating the manner in which two of mydrivers are combined in one leoni.

Referring to the drawings, A represents a picker stati or lever mountednear one end on a pivot or journah, and provided at its short `end withan armature-G, which is arranged to vibrate in the eld ot' anelectro-magnet, D, the coil of this magnet being embraced in an electriccircuit, E, which will be connected with a dynamo-electric machine, agalvanic battery, a storage-battery, or other suitable apparatus, F, forgenerating or supplying electricity. The circuit E is divided or openedat a suitable point in its length, and the electrodes or terminals G andII are arranged to act respectively upon concentric conductingwheels Iand J, which constitute circuit opening and closing devices, commonlydenominated in the art circuit-controlling devices. The wheel I is ofcircular form, and remains constantly in contact with the terminal G;but the wheel J has a projection or enlargement upon one side, and is incontact with the terminal H only during the passage of the projection orenlargement thereunder. The re- (No model.)

driven from any suitable portion of the loom or by an independent motor,as desired.

I have represented in the drawings as one arrangement for driving thecircuit-breaking wheel the pinion a, applied 'to the shaft by which thecircuit opening and closing wheels are carried, and driven by a pinion,b, applied to one ot the usual rotary shafts ot' the loom. Vhen themagnet is excited, the armature C is attracted thereto, the picker-staffA being thereby operated quickly and strongly andats upper end drivenforwardwith great rapidity. To the upper end I propose to apply a pickeror other suitable device, II, which may be ot' ordinary form,1"or actingupon and impelling the shuttle, these features constituting no part ofthe invention.

In the drawings, the picker K consists of a reciprocating block having ahole or cavity formed in one end to receive the shuttle,which will titfreely. but closely therein. The air confined in the hole or cavity willserve as a. cushion to arrest the motion of the shuttle as it advancesfrom the oppositeside of the loom.

In applying myimprovement I provide two combinations ot' mechanisms,such as above described, and locate the same at opposite sides oftheloom, placing the levers or piekersta'tl's in the position which theyordinarily occupy. The two pairs of circuit closing and opening wheelsmay be located, as shown in Fig. 2, on opposite ends of asingle shaft,or they may be otherwise arranged if preferred, the onlyrequirementbeing that they shall be timed in such manner as to close thecircuits of the respective magnets alternately,whereby the pickers areoperatedalternately and caused to throw the shuttle to and fro throughthe shed in the ordinary manner.V A spring may be applied, as shown atc, Fig. 1, to return the picker-statt to its original or backwardposition after the attraction of the magnet has ceased, or the impact ofthe shuttle as it is thrown from the opposite side ot' the machine maybe relied upon for this purpose.

\Vhile the details of the mechanism may be modiiied, provided only thatthe magnet is arranged to move the device which acts upon IOO theshuttle, the arrangement represented in the drawings is peculiarlyadvantageous in that the magnet operating with increased iorce as thearmature approaches its poles serves to impart a peculiarly quick andforcible blow to the shuttle, the motion of the parts being acceleratedas the shuttle-driver moves forward, so that although the shuttle isstarted easily and smoothly it is finally thrown with great swiftness.

My present invention is restricted to those matters and things which arehereinafter specifically claimed.

Having thus described my invention, what I claim isl. The combinationof' the picker-staff pivoted near its lowerend and provided with anarmature, the electro-magnet to attract said armature, the source ofelectric supply connected withthe magnet, the circuit opening andclosing devices, and driving mechanism therefor, said members beingconstructed and organized for joint operation substantially as describedand shown.

2. In a looin, the combination of the two picker-staifs located atopposite sides thereof, y the electro-magnets, the source of electricsupl ply connected with said magnels, the circuitcontrolling devices,and operating mechanism for said devices, substantially such asdescribed and shown.

3. In a loom, the combination of the two picker-staffs located atopposite sides, electro-magnets acting to drive the two pickers forward,devices, substantially such as dcscribed and shown, to effect theexcitation of the two magnets alternately, and the two pickers K, eachhaving the cavity or recess to receive the shuttle, whereby the pickersare caused to drive the shuttle to and fro and the impact of the shuttleapplied to return the pickers to their outer position, substantially asdescribed.

4. In a loom, the combination of the two =picker-stail's, each providedwith an armature, the electro-1nagnets,the source or sources of electricsupply connected with said magnets, the electrodes G- and H, thecircuit-controlling wheels I and J, and the sha'l't upon which saidwheels are mounted, said parts

